Figure 2
The chart is made up of four large, curved arrows forming a circle, with each arrow representing a phase of the cycle. The arrows follow a clockwise direction. “STUDY” Phase: At the top of the circle, a curved arrow pointing rightward is labeled “STUDY.” Below the label, a bulleted list includes items like “Standards and Progressions,” “Teaching Materials,” “Research on math and equity,” and “Long-Term Goals.” “PLAN” Phase: A curved arrow, starting from the right of the “STUDY” phase, points downward. This section is labeled “PLAN.” The bulleted list here contains “Research Theme, Rationale for Lesson Goal, Math Trajectory, Unit tasks and goals,” Lesson Plan: Launch, Pose task, Workshop, share and compare, summarize” and “Anticipate Student Thinking.” “DO or TEST” Phase: At the bottom of the circle, a curved arrow points leftward, labeled “DO or TEST.” The list of tasks includes “Review Comments on C L R,” “Conduct a Mock-up Lesson,” “The research lesson,” and “Collect Data and Student Work.” “REFLECT” Phase: A final curved arrow, on the left side of the circle, points upward, completing the cycle. It is labeled “REFLECT.” The list of tasks includes “Lesson Data,” “Student Work,” “Commentators' feedback,” and “Individual and Group Reflection.” The cycle is a continuous loop, with the “REFLECT” arrow pointing back to the “STUDY” phase. A footnote at the bottom of the image clarifies that “C L R” stands for “Collaborative Lesson Research proposal.”The lesson study cycle (https://cmpso.org/canmee/) [3]